Work number - P 9 FILED
Presented National Technical University "Kharkiv Polytechnic Institute"
Authors:
1. TKACHUK Mykola Anatoliyovych - Doctor of Technical Sciences, Professor, Head of Chair for Theory and Automated Design of Mechanisms and Machines of National Technical University "Kharkiv Polytechnic Institute" of Ministry of Education and Science of Ukraine
2. KRAVCHENKO Serhii Oleksandrovych - Doctor of Technical Sciences, leading researcher of Chair for Engines and Hybrid Power Plants of National Technical University "Kharkiv Polytechnic Institute" of Ministry of Education and Science of Ukraine
3. LVOV Gennadiy Ivanovych - Doctor of Technical Sciences, Professor, Professor of Chair for Mathematical Modeling and Intelligent Computing in Engineering of National Technical University "Kharkiv Polytechnic Institute" of Ministry of Education and Science of Ukraine
4. KALYAMIN Dmytro Valentynovych– Deputy Chairman of the Board of PJSC "Turbogaz"
5. NOVIKOV Maksym Kostiantynovych– Deputy Chairman of the Board, Chief Engineer of PJSC "Turbogaz"
6. BURNYASHEV Arkady Vasyliovych – Deputy Chief Engineer for Conceptual Solutions and Prospective Developments of PJSC "Turbogaz"
7. MOISEEV Serhii Viktorovych - Deputy Chairman of the Supervisory Board of PJSC "Turbogaz"
8. RUSANOV Roman Andriyovych - Doctor of Philosophy, Senior Researcher of Institute of Power Machines and Systems named after A. M. Pidgorny of the NAS of Ukraine
The results of the creation and implementation of modern turboexpander units (TEU) in the gas industry and power industry of Ukraine with technical characteristics that meet or exceed the world level are presented to ensure energy efficiency, security and energy independence of the country. This problem has acquired particular importance in connection with the constant attacks of the aggressor country on the gas production infrastructure of Ukraine.
A comprehensive methodology and software for designing flow parts of TEU has been developed, which includes mathematical models of numerical calculations of gas-dynamic processes and strength of various levels of complexity from 1D to 3D, physical experiment, methods for constructing complex spatial shapes of structural elements, etc.
General principles for constructing the spatial shape of impellers of centrifugal compressors and centrifugal turbines with a complex bulk of blades, which ensure high gas-dynamic efficiency of TEU, have been formed. It was first proposed to use blades with "solid" profiles in the impellers of centrifugal turbines, which increased their resistance to uncalculated flow angles and, as a result, significantly expanded the operating ranges of the effective operation of the TEU.
In order to increase the technical level of created TEU, new technologies and design solutions have been developed and implemented: manufacturing of impellers of centrifugal compressors and centrifugal turbines with blades of complex spatial shape; original mechanism for rotating radial blades of turbine guide devices, which ensures the absence of end flow flows, which reduces volumetric losses and increases the gas-dynamic efficiency of the turbine; magnetic suspension of the rotor, which increases the reliability and efficiency of the turbine; discrete-continuous strengthening; anti-erosion strengthening of the working surfaces of the blade device elements, which leads to an increase in their durability; technology for applying composite material bandages to the pipe to eliminate defects without stopping the operation of main pipelines, etc.
The created high-tech turbines have unique efficiency characteristics (up to, and in some cases above 90%), provide high quality natural gas preparation, and increase the resource, reliability and economy by 10÷25%. Development and implementation of science-intensive innovative technologies in the design and production processes allowed PJSC "Turbogas" to enter the top five world leaders among manufacturers of turboexpander units of the corresponding class.
In the period 2014-2024, 93 TEU were implemented at 54 objects in Ukraine and abroad, which, due to increased gas condensate production, reduced gas consumption for pressure compressor drives and electricity generation, provided a total economic effect 1 725 billion UAH. In the future, according to the analysis, the economic effect after the implementation of new TEU of all types in Ukraine will reach 29 billion UAH per year.
Number of publications: 5 monographs, 12 chapters in monographs, 6 manuals, 135 articles (43 articles in English-language journals). The total number of references to authors publications / h-index of work, according to the databases is, respectively: Web of Science – 221/8, Scopus – 392/25, Google Scholar – 957/28. 30 patents of Ukraine and other countries for inventions and 21 patents for utility models are received.
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